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OpenStudy (anonymous):
What is the measure of each base angle of an isosceles triangle if its vertex angle measures 38 degrees and its 2 congruent sides measure 23 units?
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OpenStudy (anonymous):
|dw:1330646116254:dw| What is the measure of each base angle of an isosceles triangle if its vertex angle measures 38 degrees and its 2 congruent sides measure 23 units?
OpenStudy (anonymous):
the sum of the angles of atrianlge os 180 degrees use this simple formula to find the measure of the base angle. . base angle= (180-38)/2 =71 degrees.
OpenStudy (anonymous):
why i divide it by 2?
OpenStudy (anonymous):
i got 71 degrees. but how can each angle is to 71 degrees if trainlges equal to 180?
OpenStudy (anonymous):
because, the base angle of an isosceles triangle are equal.. let's check A+B+C=180 71+71+38= 180 180 =180
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OpenStudy (anonymous):
is it clear to you?
OpenStudy (anonymous):
yes thank you.
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